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IDBRecord - Web APIs | MDN

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Instance properties

key Read only

A value representing the record's secondary key. For an object store record, this will be the same as primaryKey. For an index record, it will be the record's key within the index.

primaryKey Read only

A value representing the record's primary key. This key is used to represent the record in the IDBObjectStore.

value Read only

A value representing the record's value.

Examples

Basic usage

This example queries an IDBObjectStore for up to 100 records whose keys come after "myKey", with results sorted in reverse order.

The code first creates a transaction on an IDBDatabase named db (omitting the code to open the database), and then uses it to get an IDBObjectStore containing a contacts list. It then calls getAllRecords() on the object store, returning a IDBRequest instance. Event listeners are added to this request for the success and error events. On success, the result event.target.result is logged (this is also available as request.result). This result contains an array of IDBRecord instances. Note that because this is a query on an IDBObjectStore, the key and primaryKey in each record have the same value.

js
// Create a transaction on the database and use it to get the contained store
const transaction = db.transaction(["contactsList"], "readonly");
const objectStore = transaction.objectStore("contactsList");

const query = IDBKeyRange.lowerBound("myKey", true);

const request = objectStore.getAllRecords({
  query,
  count: 100,
  direction: "prev",
});

request.addEventListener("success", (event) => {
  const myRecords = event.target.result; // Array of IDBRecord instances
  console.log(myRecords);
});

request.addEventListener("error", (event) => {
  console.error("Error retrieving records:", event.target.error);
});